F 150 2WD V8-4.6L VIN W (2007)
Refrigerant: Description and Operation
REFRIGERANT SYSTEM DYE
Fluorescent refrigerant system dye is added to the refrigerant system at the factory to assist in refrigerant system leak diagnosis using a
Rotunda-approved ultraviolet blacklight. It is not necessary to add additional dye to the refrigerant system before diagnosing leaks, even if a significant
amount of refrigerant has been removed from the system. New suction accumulators are shipped with a fluorescent dye "wafer" included in the desiccant
bag, which will dissolve after approximately 30 minutes of continued A/C operation. It is not necessary to add dye after flushing or filtering the
refrigerant system because a new suction accumulator is installed as part of the flushing or filtering procedure. Additional refrigerant system dye should
only be added if more than 50 percent of the refrigerant system lubricant capacity has been lost due to a fitting separation, hose rupture or other damage.
